Show method of greasing, Civil Engineering

Assignment Help:

Method of Greasing : Greasing of fixed end requires 20 to 25 minutes. The lifting is hardly 10 mm, ensuring that the gap is created between saddle block and knuckle pin. Saddle is not lifted above collar to prevent lateral creep of the girder. Steel scraper is used to remove old grease, dust and dirt. The contact area is cleaned with oil. Grease is applied and then girder is lowered back.

Greasing of free end requires 45 to 50 minutes. Knuckle plate is tied to the saddle plate with wire rope having turn buckle arrangement to release the load from roller when the girder is lifted. When the girder is lifted about 10 mm and rollers are free, link plate and tooth bar are removed after opening the stud connections. All rollers should be taken out and cleaned with scraper and these are sand-papered with a fine sand-paper of zero grade. Rollers should be examined for any possible signs of flattening or minute cracks with a magnifying glass. Grease graphite grade 3 conforming to IS 508 is applied over the base plate evenly below the roller contact area. The rollers are then placed in position and grease applied at the top contact surface. Link plate and tooth bars are connected with care so that tooth bar is placed in the same inclination as per the drawing.

With the help of turn buckle of wire rope sling, the knuckle plate is lowered over the rollers. This will create gap between the saddle block and knuckle plate. Cleaning and greasing of this area is then carried out similar to the fixed end and girder is lowered back.


Related Discussions:- Show method of greasing

Surveying, describe two fundamentals purposes of surveying.

describe two fundamentals purposes of surveying.

How to design shape of guide bunds, Q. How to design Shape of guide bunds? ...

Q. How to design Shape of guide bunds? Alignment of guide bunds converging on the upstream was considered by Bell, Spring and Gales to allow for the waterway obstructed by pier

Strenght of meterials 2, Difference between direct and bending stress diagr...

Difference between direct and bending stress diagrams

Calculate the square foot of contact area for the formwork, A concrete crew...

A concrete crew will use the available steel form panels measuring 2'-6" wide x 4'-0" high to construct a 40'-6" long by 3'-2" high by 1'-6" wide concrete knee wall. The square

Soil classification - road materials, Soil Classification: Based on p...

Soil Classification: Based on particle size, the soils can be classified as under, adopting the IS soil classification system: 0.002   0.075   0.425   2.36     4.75

Tremie pipes are normally used with aid of hoppers, Question For underw...

Question For underwater concreting, tremie pipes are normally used with aid of hoppers. From time to time tubes are put in inside the hoppers and with reasons? Answer

Determine the active thrust on the wall, A retaining wall 9 m high retains ...

A retaining wall 9 m high retains granular fill weighing 18 kN/m 3 with level surface. The active thrust on the wall is 180 kN per metre length of the wall. The height of the wall

What is the meaning of elastic shortening of concrete, What is the meaning ...

What is the meaning of Elastic Shortening of Concrete At the transfer stage, compressive prestressing force is transferred to the concrete. Due to this compressive force, concr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd